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for...in - Pine Script Keyword

`for...in`

Overview

The for…in structure allows the repeated execution of a number of statements for each element in an array. It can be used with either one argument: array_element, or with two: [index, array_element]. The second form doesn’t affect the functionality of the loop. It tracks the current iteration’s index in the tuple’s first variable.

Syntax

[var_declaration =] for array_element in array_id
    statements | continue | break
    return_expression

[var_declaration =] for [index, array_element] in array_id
    statements | continue | break
    return_expression

Example

//@version=6indicator("`for ... in` matrix Example")// Create a 2x3 matrix with values `4`.matrix1 = matrix.new<int>(2, 3, 4)sum = 0.0// Loop through every row of the matrix.for rowArray in matrix1    // Sum values of the every row    sum += array.sum(rowArray)plot(sum)

See Also